#1F4690#1F4690

#1F4690 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.1% C 0.130 H 261.7°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#1F4690
RGB	rgb(31, 70, 144)
HSL	hsl(219, 65%, 34%)
HSV	hsv(219, 78%, 56%)
CMYK	cmyk(78.5%, 51.4%, 0%, 43.5%)
CIE-LAB	lab(31.08, 14.25, -44.88)
CIE-LCH	lch(31.08, 47.09, 287.61°)
OKLab	oklab(41.06% -0.0189 -0.1291)
OKLCH	oklch(41.06% 0.13 261.7)
XYZ	xyz(7.7875, 6.6844, 27.2599)
Luminance	0.0669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4690 #90691F

analogous

#1F7F90 #1F4690 #311F90

triadic

#1F4690 #901F46 #46901F

tetradic

#1F4690 #901F7F #90691F #1F9031

square

#1F4690 #901F7F #90691F #1F9031

split-complementary

#1F4690 #90311F #7F901F

monochromatic

#09152B #142E5E #1F4690 #2A5EC2 #507FD9

Accessibility & contrast

On white

8.99

#1F4690 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1F4690 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4690

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4690	#FFFFFF	#000000	##FFFFFF
##1F4690	1.00	8.99	2.34	8.99
#FFFFFF	8.99	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184F93

Deuteranopia (green-blind)

#00448F

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4690;
/* rgb */ color: rgb(31, 70, 144);
/* oklch */ color: oklch(41.1% 0.130 261.7);

Tailwind

colors: {
  custom: {
    50: '#6d78b1',
    500: '#1f4690',
    950: '#000000',
  },
}

SCSS

$custom: #1f4690;
$custom-light: #6d78b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4690",
  "rgb": {
    "r": 31,
    "g": 70,
    "b": 144
  },
  "hsl": {
    "h": 219.292,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.41062,
    "c": 0.13049,
    "h": 261.7
  },
  "luminance": 0.06685
}

Semantic roles & 50–950 ramp

primary

#1F4690

secondary

#BC964E

accent

#AE40E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4690

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →